Supporting device for electrical equipments



' p 1932- w. A. HEINRICH SUPPORTING DEVICE FOR ELECTRICAL EQUIPMENTS Filed Oct. 10. 1930 INVENTOR WALTER A.

HE/NP/CH MM/I gg j ATTORNEYS Patented Sept. 13, 1932 UNITED STATES PAT-TENT} oF Ic WALTERA. nnmmcn, on ST. LOUIS, MISSOURI sorronirine DEVICE roe ELECTRICAL EQUILPMENTS Application filed October 10, 1930. Serial No. 487,890.

jacence with one face of the arm. Thisfand other older types of cross jarm hangers are practically of predetermined dimensions,

since three. faces thereof are permanently structurally related, and of fixed angularity. Hence for practical purposesa separate hanger has heretofore been required inconnection with each cross arm of adifferent size. The inconvenience resulting from this necessit is obvious to those skilled in the art. i r

. 2 The present inventiontherefore has as" an object, the provision of a cross arm'hanger of universal application for the support of outdoor electrical apparatus, to any of the standard sizes of cross arms. 1

A further object of the invention-is the provision of .a cross arm hanger, which isnot only adjustable in size to permit:its use connection with any standard size cross arm or like supporting member, but which has a p 5 widefrange of adaptability-for connection with any of a great variety of electricaldevices, each of which heretofore may have been provided with its own peculiar style of mounting for association with a cross'arm or like support. 7 Further objects andadvantages of'the invention will appear from the following detailed description, considered in connection With the accompanyingdrawing of preferred embodiments of the invention. In the draw mg:

Fig. 1 is a side view of a preferred form of hanger as applied to a crossfarm, which for convenience is shown in section; Fig-2'is a front: elevation of the clamp appearing in .lar. apparatus to be connected thereto. I'

Fig. 1, and Fig. 3is a view similar to Fig. 1 and showing a slightly modified formof'the invention. 5 1 m i 7 Referring now by reference numerals to the drawing, thenumerali designates, in '55 section, across arm of standard type with I which is shown a two part hanger or. supporting clamp,=on e half or part of. which consists. of a face 5, by preference slightly curved so as toconform to the usualcambered 36 top surface of the cross arm,-and;a face 6, disposed at substantially a right angle with respect tothe face 5. My preference is to extend each of the face portions 513,116; 6-at 1 one ,endithereof, toform an angularly dis- 6% posed terminal clamping lug 7 companion mating. terminal lugs being provided on the 4 v complementary portion ofthe iclamp-fconstituted, by. face portions 8 and 9, disposed 1n like :manner at I substantially a "right. angle tore ach other. E'aclrhalf of the hanger-may beformed.

of flat strip material, preferably galvanized or. otherwise. rust proofed- The mated .terminal lug portions 7. are by preference-pro- 76 vided with registered boltopenings adapted to accommodate the bolts 10', by which, the twohalves of the clampare secured together about the cross arm. i The: arrangement of.- parts is preferably 80 .such that the bolts .10 and clamping lugs ,are disposed at diagonally opposite corners -o f' the substantially rectangular area-enclosed bythe hanger; each half of the clamp formting two sides of the rectangle. defined by the clamp as a whole. 7 a As a means for structurally associating, by preference in detachable relatiomthe electrical apparatus to be carried by the hanger,

there isprovided an extension formed in the present example by a pair of parallel arms 7 11 extended in a direction diagonally. from' one corner of the substantially rectangular area embraced by the hang-er. Thele'ngth of the arms-ll will, of"course, depend"upon particular requirements of s'pace insulation, etc, and may be determined by the nature and desired angular mounting of the particu- I .iBhlS'GXPGdIlQDtXIIIEQUObXHOHSly beiemployedan arms 11, there is provided a pair of bolt openings 12, aligned With each other transversely of the arms 11. V

The arms of the extension are, by preference, joined to each .other :at ;the gouter extremity \of the extension by ,aniend. member 13 through which there is also provided a bolt opening 14, shown as occupied an attachment bolt 15. Eacho'fthe-bolt" openings is, by preference, of rectangular, shape, andsofa size to receive the usual squared shank portype may be inserted in either direction and .begpositionetlagainst rotation While. thread- Y ring 211p rtheznutithereon.

The device of Figs. 1 and 2is panti'cularly :adaptedtfor use in i'hangi'ngior supporting a :fuse :switch :assembly of :a type described in detail- :in ".my copending application :of Serial:No.-:48'Z889,:filed 0ct. ?10, 1930. b-

.viously, :the hanger clamp -;for ming the :-sub-- j ectzmattergof) the present :disclosureamay -be .employ-ediin iQOIlIlGCi/iOIllWllb'h .a variety so other kapparatus. I

modifiediform ofthe device as securedto a clamp, While the diagonally opposite 5 lug 116 V ample'itliertop orrcurved face, may-'beapro- 4 ,8 :crosssanm, 'the'sarmlbeing shown in section as formed onjface 8, is bent uponitself to form anend membe-r l7, provided with-a bolt-open Iing 18, and further forming a leg PO'rtiOn '19 parallel to the lug 16. The portion 19*teruse, to lie-iflatly' against the face 8," and may, if-desired, be welded to the face. The'membersilfi a nd 1-9are provided with registering bolt openings, as is apparent from the draw 'ing, for the receptiolr'of a bolt 22 which, if

:desired may be provided with a pair of nuts in. certain installationsfit -may be desirable to provide an anchorage =to "resist movement of thejclamp along' thecross arm. "Tothis end,'one of the faces of the-hanger, forexvided with :an aperture, tthrou'gh lwhil'lflia .wood screwz24 may be tlriven into the iarm,

[connection with either ofthe'illustrated types 7 (parent from the; drawings-11d from the pref'.-cla1np. 1 V v The 51113 11181 off {1186 and application of'the desfi iibed hanger-is ithought to be fully apceding description of parts To apply the shangenit is-imerely-necessary-to removethe bclts-suchas 1-0'of Fig. 1, and. 10 and322 rof Fig. 3; Upon application :of the itwo parts w side "view of a 7 of the hanger about the arm, the bolts are again inserted and the nuts threaded up, as far as the size of the arm Will permit. It will appear obvious that as the hanger is employed With relatively larger sizes of cross arms, the spacing of the terminal lugs Willbe correspondingly,increased,-but that =nevertheless iithetc-lamp'zwill, asa .whole, substantially embrace, and engage the four faces of the cross arm. The use of attachment bolts such sis- 15 and 22-will permit the ready application of the associated apparatus to the hanger, sothatin practice it is necessary to tion of a carriage bolt,-so.that. a bolt.ofithis ,provide a temporary support for therelectrade :for overhead relectricaliline Work, are g of substantially uniform vsectional proportions, sogthat throu-gh'themange of usualrs'izes therseetionahconformity;appearsssubstantially-theis-ama'al-though:greaterzinsectional. area in-,thelarger sizes. Thus,:the :Presentiprovi sion= ofiaitrwo part clamp having. angularifaces .inrwhich thepartsiofgtherclamp arel'connected at diagonally opposite corners, sresults 1 in ;a construct on ,;-fhav ng v practically universal adaptahilityforwits iintendedapurposep ilwhe .arrangfimelihhas been.foundiinpracticecma- ,terially 51 51 du athcacnecessary stockzofmmss arm parts (required.snot only :by. :the manufracture-1' sand obbe-r, butalso frby {large users of s'equipmentaofithis sort. I :ffhis'sreduction .in

theinumbcri ,(ifidiiferent: steels itemsiiszreflected in {economics :toitlie imanufacturer .-2and user, in fulfillment of :the -,-several objects 1heretofore set forth.

.v While {It-have gillustratediand described in 1- "great detail :but wtwo differentembodiments 'Qf :the "invention ;and theme described? it-h'eir adaptation to the.=snpport of;outdoor;electrical equipment, it will appear obvi'iousithat-a wide wvariety rofiotlieri'uses veiiist *forsa clamp of this ltype, and:that :a :number S of changes may rbe made in the raiirangemenu'; construction -.and I combinations 1 ofparts 'r constituting the: dexiice, without? departing .zfromathespirit and 1 fulliintended 1 scope ofgthe invention, 1 as definedzby'tthe following claims;v

Iielaimeas mylinventionz 1 1.- Ai-clampingdevice arrangedfor mount- 'ing ifilBGbDlGflll apparatus zto :a ssup'por't there for, said device including a pair-of-separable having zlegs iangularly disposed :relative to each other, 1the legs Lofione :of said members 'paratus to be supported, and means disposed jnea'r ithelouteriends of said 'ilegs for detachl u i h m ogether about the supports 1 '2. .Assubstantially rectangular cla af support-engaging .zmembers, each member securement of electrical apparatus to a cross arm, said clamp including a pair of clamping members, each of angulate construction formed of flat, metal strip material and adapted to engage ,a pair of adjacent surfaces of the arm, one of said clamping members being bent outwardly to form spaced, yieldably related arms, a holding element associated with said arms, and means for detachably clamping said members together at diagonally opposite locations.

3. A hanger clamp for attachment to a cross arm, the clamp including a pair of separable clamping members, each of said members having a pair of face portions disposed at substantially a right angle to each other, each face portion being extended outwardly of the clamp to form a clamping lug disposed near one corner of the clamp and associated cross arm, and the clamping members being related for mutual clamped securement, through pairs of said lugs, with the paired lugs disposed substantially at diagonally opposite locations, one of said members having a reversely bent portion, projected away from its face portions, and adapted for connection to apparatus to be supported from the cross- 7 arm.

4. A universal cross arm hanger ing a pair of substantially V shaped clamping members, means for securing said members together about a cross arm, one of said members being bent away from its arm-engaging portion to form a loop portionfland holding means engaging said loop portion.

5. A cross arm hanger including a pair of angulate strap metal members arranged for securement to each other in opposed relation about a cross arm, one of said members terminating in an outwardly projecting polyge onal loop to form an extension piece, adapted for attachment to apparatus to be supportedby the cross arm and a bolt extending through said looped portion for securing said members together. I v

6. A cross arm hanger including two separable clamping portions, each of said portions having a pair of faces, each face conforming substantially to one face of the cross arm to be engaged thereby, the faces of each clamping memberbeing disposed at substantially a right angle to each other, the clamp ing members being adapted forsecurement together in opposed relation to form a substantially rectangular enclosure; terminal projections associated with the clamping members and disposed at diagonally opposite corners of the hanger, and an extension disposed diagonally of the clamp for engagement with apparatus to be supported thereby,

includa 

